2009 SUBARU TRIBECA Intake

GD(H6DO)-149
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CL:DTC P0459 EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CON-
TROL VALVE CIRCUIT HIGH
1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of the purge control solenoid valve.
Judge as NG when the ECM output level differs from the actual terminal level.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis after starting the engine.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time until completing the malfunction criteria below becomes more than
time needed for diagnosis (2.5 seconds).
Time Needed for Diagnosis: 2.5 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
(A) To canister (B) To intake manifold
Secondary Parameters Enable Conditions
Ignition switch ON
Battery voltage≥ 10.9 V
After engine starting 1 second or more
Judgment Value
Malfunction Criteria Threshold Value
Duty ratio of “ON”≥ 25%
Te r m i n a l o u t p u t v o l t a g e H i g h
EN-02197
( A )( B )

GD(H6DO)-151
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CM:DTC P0461 FUEL LEVEL SENSOR CIRCUIT RANGE/PERFORMANCE
1. OUTLINE OF DIAGNOSIS
Detect malfunctions of the fuel level sensor output property.
If the fuel level does not vary in a particular driving condition/engine condition where it should, judge as NG.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the malfunction criteria below are met.
(A) Fuel level (B) Resistance
Secondary Parameters Enable Conditions
None
Judgment Value
Malfunction Criteria Threshold Value
Accumulated amount of intake air > 331 kg (729.7 lb)
Max. – min. values of fuel level output < 2.6 2 (0.69 US gal,
0.57 Imp gal)
Battery voltage≥ 10.9 V
Engine speed < 7000 rpm
After engine starting 5 seconds or more
EN-01734
0(B)
(A)

GD(H6DO)-152
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Time Needed for Diagnosis: Undecided
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear the NG when the malfunction criteria below are met.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
8. FAIL SAFE
None
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Judgment Value
Malfunction Criteria Threshold Value
Accumulated amount of intake air > 331 kg (729.7 lb)
Max. – min. values of fuel level output≥ 2.6 2 (0.69 US gal,
0.57 Imp gal)
Battery voltage≥ 10.9 V
Engine speed < 7000 rpm
After engine starting 5 seconds or more

GD(H6DO)-163
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CS:DTC P0506 IDLE CONTROL SYSTEM RPM LOWER THAN EXPECTED
1. OUTLINE OF DIAGNOSIS
Detect the malfunction that actual engine rpm is not close to target engine rpm during idling. Judge as NG
when actual engine RPM is not close to target engine RPM during idling.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at idling after warming up engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criterion below is 10 seconds × 3
times.
Time Needed for Diagnosis: 10 seconds × 3 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear NG when the continuous time of completing the malfunction criterion below becomes
more than the time needed for diagnosis (10 seconds).
5. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
Secondary Parameters Enable Conditions
Engine coolant temperature≥ 75°C (167°F)
Battery voltage≥ 10.9V
Atmospheric pressure > 75.1 kPa (563
mmHg, 22.2 inHg)
Fuel level≥ 9.6 2 (2.54 US gal,
2.11 Imp gal)
After engine starting 10 seconds or more
Feedback in ISC In operation
Lambda value (left and right) 0.9 ←→ 1.1
After air condition switching ON-OFF,
OFF-ON
5.1 seconds or more
After intake manifold pressure changes
more than 4 kPa (30 mmHg, 1.2 inHg)
> 5.1 sec.
After neutral switch ON-OFF change > 5.1 sec.
Ve h i c l e s p e e d 0 k m / h ( 0 M P H )
Judgment Value
Malfunction Criteria Threshold Value
Actual - target engine RPM < –100 rpm
Feedback value for ISC Max.
Judgment Value
Malfunction Criteria Threshold Value
Actual - target engine RPM≥ –100 rpm

GD(H6DO)-165
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CT:DTC P0507 IDLE CONTROL SYSTEM RPM HIGHER THAN EXPECTED
1. OUTLINE OF DIAGNOSIS
Detect the malfunction that actual engine rpm is not close to target engine rpm during idling. Judge as NG
when actual engine RPM is not close to target engine RPM during idling.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at idling after warming up engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criterion below is 10 seconds × 3
times.
Time Needed for Diagnosis: 10 seconds × 3 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear NG when the continuous time of completing the malfunction criterion below becomes
more than the time needed for diagnosis (10 seconds).
5. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
Secondary Parameters Enable Conditions
Engine coolant temperature≥ 75°C (167°F)
Battery voltage≥ 10.9V
Atmospheric pressure > 75.1 kPa (563
mmHg, 22.2 inHg)
Fuel level≥ 9.6 2 (2.54 US gal,
2.11 Imp gal)
After engine starting 10 seconds or more
Feedback in ISC In operation
Lambda value (left and right) 0.9 ←→ 1.1
After air condition switching ON-OFF,
OFF-ON
5.1 seconds or more
After intake manifold pressure changes
to more than 4 kPa (30 mmHg, 1.2 inHg)
> 5.1 sec.
After neutral switch ON-OFF change > 5.1 sec.
Ve h i c l e s p e e d 0 k m / h ( 0 M P H )
Judgment Value
Malfunction Criteria Threshold Value
Actual – Target engine RPM≥ 200 rpm
Feedback value for ISC Min.
Judgment Value
Malfunction Criteria Threshold Value
Actual – Target engine RPM < 200 rpm

GD(H6DO)-182
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DF:DTC P1152 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (LOW) (BANK 1
SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect that λ value remains low.
Judge as NG when lambda value is abnormal in accordance with λ value of front oxygen (A/F) sensor and
running conditions such as vehicle speed, amount of intake air engine coolant temperature, sub feedback
control, etc.
2. COMPONENT DESCRIPTION
λ value = Actual air fuel ratio/Theoretical air fuel ratio
λ >1: Lean
λ < 1: Rich
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)

GD(H6DO)-183
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Perform diagnosis continuously at a constant speed of 20 km/h (12 MPH) or more, starting from 60 seconds
after starting the engine.
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time of meeting the malfunction criteria below becomes more than the
time needed for diagnosis (10 seconds). Judge as OK and clear the NG when the malfunction criteria below
are not met.
Time Needed for Diagnosis: 10 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
8. FAIL SAFE
•Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
•Rear oxygen sensor sub learning compensation: Not allowed to calculate.
•Purge control: Not allowed to purge
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Secondary Parameters Enable Conditions
All secondary parameters enable conditions4 seconds or more
Battery voltage > 10.9 V
Atmospheric pressure > 75.1 kPa (563 mmHg, 22.2 inHg)
Rear oxygen sensor sub feedback Execution
Rear oxygen sensor output voltage –
Feedback target voltage
–0.2 V ←→ 0.1 V
or rear oxygen sensor sub feedback
compensation coefficient
On Min.
or rear oxygen sensor sub feedback
compensation coefficient
On Max.
After engine starting 60 seconds or more
Engine coolant temperature≥ 75°C (167°F)
Ve h i c l e s p e e d≥ 20 km/h (12 MPH)
Amount of intake air≥ 8 g (0.28 oz)/s
Load change in 1/3 engine revolution.≤ 0.02g (0.001 oz)/rev
Fr o nt ox yg e n ( A / F) s en so r im pe d an c e 0 ←→ 50 Ω
Learning value of evaporation gas density≤ 0.12
To t a l t i m e o f o p e r a t i n g c a n i s t e r p u r g e 2 0 s e c o n d s o r m o r e
Ta r g e t e d l a m b d a v a l u e l o a d c o m p e n s a -
tion coefficient
–0.05 ←→ 0.05
Judgment Value
Malfunction Criteria Threshold Value
Output λ value when rear oxygen sensor
sub feedback compensation coefficient
is not at maximum limit
≤ 0.85

GD(H6DO)-184
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DG:DTC P1153 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (HIGH) (BANK 1
SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect that λ value remains high.
Judge as NG when lambda value is abnormal in accordance with λ value of front oxygen (A/F) sensor and
running conditions such as vehicle speed, amount of intake air engine coolant temperature, sub feedback
control, etc.
2. COMPONENT DESCRIPTION
λ value = Actual air fuel ratio/Theoretical air fuel ratio
λ >1: Lean
λ < 1: Rich
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)